Adaptive and fuzzy approaches for nodes affinity management in wireless ad-hoc networks

In most of the ad-hoc routing protocols, a static link lifetime (LL) is used for a newly discovered neighbors. Though this works well for networks with fixed infrastructures, it is inadequate for ad-hoc networks due to nodes mobility and frequent breaks of links. To overcome this problem, routing...

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Main Authors: Natsheh, Essam, Tat, Chee Wan
Format: Article
Published: IOS Press 2008
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Online Access:http://eprints.usm.my/38256/
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author Natsheh, Essam
Tat, Chee Wan
author_facet Natsheh, Essam
Tat, Chee Wan
author_sort Natsheh, Essam
building USM Institutional Repository
collection Online Access
description In most of the ad-hoc routing protocols, a static link lifetime (LL) is used for a newly discovered neighbors. Though this works well for networks with fixed infrastructures, it is inadequate for ad-hoc networks due to nodes mobility and frequent breaks of links. To overcome this problem, routing protocols with estimated LL using nodes affinity were introduced. However, these protocols also used the static estimated LL during the connection time. In contrast to that, in this paper two methods are presented to estimate LL based on nodes affinity and then continually update those values depending on changes of the affinity. In the first method, linear function is used to map the relationship between the signal strength fluctuation and LL. In the second method, fuzzy logic system is used to map this relationship in a nonlinear fashion. Significance of the proposed methods is validated using simulation. Results indicate that fuzzy method provides the most efficient and robust LL values for routing protocols.
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spelling usm-382562018-01-05T02:52:54Z http://eprints.usm.my/38256/ Adaptive and fuzzy approaches for nodes affinity management in wireless ad-hoc networks Natsheh, Essam Tat, Chee Wan QA75.5-76.95 Electronic computers. Computer science In most of the ad-hoc routing protocols, a static link lifetime (LL) is used for a newly discovered neighbors. Though this works well for networks with fixed infrastructures, it is inadequate for ad-hoc networks due to nodes mobility and frequent breaks of links. To overcome this problem, routing protocols with estimated LL using nodes affinity were introduced. However, these protocols also used the static estimated LL during the connection time. In contrast to that, in this paper two methods are presented to estimate LL based on nodes affinity and then continually update those values depending on changes of the affinity. In the first method, linear function is used to map the relationship between the signal strength fluctuation and LL. In the second method, fuzzy logic system is used to map this relationship in a nonlinear fashion. Significance of the proposed methods is validated using simulation. Results indicate that fuzzy method provides the most efficient and robust LL values for routing protocols. IOS Press 2008 Article PeerReviewed Natsheh, Essam and Tat, Chee Wan (2008) Adaptive and fuzzy approaches for nodes affinity management in wireless ad-hoc networks. Mobile Information Systems , 4 (4). pp. 273-295. ISSN 1574-017X http://dx.doi.org/10.1155/2008/871712
spellingShingle QA75.5-76.95 Electronic computers. Computer science
Natsheh, Essam
Tat, Chee Wan
Adaptive and fuzzy approaches for nodes affinity management in wireless ad-hoc networks
title Adaptive and fuzzy approaches for nodes affinity management in wireless ad-hoc networks
title_full Adaptive and fuzzy approaches for nodes affinity management in wireless ad-hoc networks
title_fullStr Adaptive and fuzzy approaches for nodes affinity management in wireless ad-hoc networks
title_full_unstemmed Adaptive and fuzzy approaches for nodes affinity management in wireless ad-hoc networks
title_short Adaptive and fuzzy approaches for nodes affinity management in wireless ad-hoc networks
title_sort adaptive and fuzzy approaches for nodes affinity management in wireless ad-hoc networks
topic QA75.5-76.95 Electronic computers. Computer science
url http://eprints.usm.my/38256/
http://eprints.usm.my/38256/